Enable/disable textbox based on dropdown selection.

Question

2.75/5 (4 votes)

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I have a dropdown list, with an "other" item in it. When a user clicks this option, I want to enable a textbox so that users can enter details into it. Any other option should result in the textbox being disabled. Could you please tell me what I need to write to do this?

Posted 4-May-11 23:20pm

vimal22 2

Updated 23-Mar-18 17:42pm

Pete O'Hanlon

v2

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Comments

Mahendra.p25 5-May-11 5:22am

what do you want not clear?

Neetesh Agarwal 20-May-12 14:49pm

If user select items from drop down list , but if he does not find desire item in list there will be another item "Other" will select by him and there will be a text box visible there user put desire value.

4 solutions

Solution 6

Quote:
if(dropdownlist.selecteditem.Text=="other")
textbox.Enabled=true;
else
textbox.Enabled=false;

Posted 23-Mar-18 17:43pm

Member 13626945

Comments

CHill60 24-Mar-18 12:47pm

Don't repost other member's solutions

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Neetesh Agarwal · Accepted Answer · 2012-05-20T20:47:00

It will work fine using java script.

XML

<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem>a</asp:ListItem>
<asp:ListItem>b</asp:ListItem>
<asp:ListItem >others</asp:ListItem>
</asp:DropDownList>

XML

<asp:TextBox runat="server" ID="TextBox1" Style="display: none;">

//Download and Add this JS file in your project

http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js[^]

// NOw use this script

XML

<script type="text/javascript">
$('#<%= DropDownList1.ClientID %>').change(function () {
if (this.value == 'others') {
$('#<%= TextBox1.ClientID %>').css('display', 'block');
}
else {
$('#<%= TextBox1.ClientID %>').css('display', 'none');
}
});
</script>

Ashishmau · Accepted Answer · 2011-05-04T23:34:00

Solution 1

ITS SIMPLE

C#

if(dropdownlist.selecteditem.Text=="other")
textbox.Enabled=true;
else
textbox.Enabled=false;

Posted 4-May-11 23:34pm

Ashishmau

Updated 20-May-12 22:07pm

v2

Comments

Neetesh Agarwal 20-May-12 14:49pm

but its not in java script..............

Kesha Patel 22-Feb-17 10:06am

if i want to enable again when select other item from dropdownlist than what should i do?

Mahendra.p25 · Accepted Answer · 2011-05-04T23:47:00

try this code

//set AutoPostBack="true" and On selected Index Changed write that Code
protected void Dropdown1_SelectedIndexChanged(object sender, EventArgs e)
       {
           string Check = Dropdown1.SelectedItem.Text;
           if (Check == "Other")
           {
               txt.Enabled = true;
           }
           else
           {
               txt.Enabled = false;
           }
       }

Enable/disable textbox based on dropdown selection.

4 solutions

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